This is taken from another site where someone has tried to tie it all together with answers. There alot smarter than I am and I cant confirm if its all correct or not. Just showing how much thought and research goes into each Q drop. Enjoy.........

answers Who controls the NG?

Normally the states; the state governors
During peacetime each state National Guard answers to leadership in the 50 states, three territories and the District of Columbia. During national emergencies, however, the President reserves the right to mobilize the National Guard, putting them in federal duty status.

Why was the NG recently activated in select cities within the US?

Charlottesville, VA - ANTIFa (anticipation of lack of law and order) Texas - hurricane Florida - hurricane US Virgin Islands - hurricane Puerto Rico - hurricane California - wildfires Montana - wildfires Can the NG work in coordination w/ the marines?

Yes Do conditions need to be satisfied to authorize?

The NG is mainly activated by the states, the POTUS needs Congressional approval to activate the NG. If the states activate them, POTUS can take control of them. This would allow the Marines and the NG to work together under one set of orders. This is shown in the Posse Comitatus Act where by the POTUS can take control. What former President used the military to save the republic and what occurred exactly?

Abraham Lincoln - CIVIL WAR resulted He declared Martial Law which suspended habeas corpus in the US. More specifically he imposed the suspension on "prisoners of war, spies, or aiders and abettors of the enemy," as well as on other classes of people, such as draft dodgers." Source=https://en.wikipedia.org/wiki/Martial_law_in_the_United_States#Ex_parte_Milligan

SUMMARY

Someone controls the National Guard. The National Guard recently activated in select cities within the US. The National Guard work in coordination with the Marines. Conditions need to be satisfied to authorize. A former President used the military to save the republic. extra answers Who controls the NG?

State governor. Was Pentagon. Now is POTUS by way of order of Pentagon Why was the NG recently activated in select cities within the US? Can the NG work in coordination w/ the marines?

Yes, per NG recruiting site:respond to domestic emergencies, overseas combat missions, counterdrug efforts, reconstruction missions and more. Seeing they are in Kuwait and Afghanistan, they also work with/for the Army. NG is reserves for the Army. https://en.wikipedia.org/wiki/National_Guard_of_the_United_States Do conditions need to be satisfied to authorize?

During national emergencies, however, the President reserves the right to mobilize the National Guard, putting them in federal duty status What former President used the military to save the republic and what occurred exactly?

Also: -Whiskey Rebellion -Andrew Jackson. In 1832, he ordered federal armed forces to South Carolina to enforce federal (tariff) laws. South Carolina backed down, and the union was preserved. -JFK activated (federalized) Alabama NG on 6/11/1963 -George Bush- during the 1992 LA riots - Rodney King Riots.